Bridge pier local scouring protection device

Abstract

The utility model relates to the technical field of pier protection, and discloses a pier local scouring protection device which comprises a bottom platform and a pier, the center of the bottom platform is fixedly connected with the pier, a bottom layer protection assembly used for protecting the bottom platform is arranged on the outer side of the bottom platform, and a middle layer protection assembly used for protecting the bottom of the pier is arranged on the outer side of the bottom of the pier. The bottom layer protection assembly is arranged on the outer side of the bottom platform and mainly plays a role in buffering and unloading force, when water flow, floating objects and the like in a river impact the bottom platform, the bottom layer protection assembly can absorb part of impact force, direct damage to the bottom platform is reduced, and the service life of the bottom platform is prolonged. The middle-layer protection assembly is mainly used for protecting the bottom of the bridge pier from being directly scoured by water flow, the annular frame can evenly disperse impact force, the supporting rods and the reinforcing rods jointly form a firm supporting structure to prevent the protection assemblies from being deformed or damaged, and meanwhile the buffering assembly absorbs and disperses the remaining impact force to prevent the bridge pier from being damaged. The bottom of the pier is further protected from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge pier protection, and in particular to a bridge pier local scour protection device. Background Art

[0002] Bridge piers are structures that support the span structure and transmit dead loads and vehicle live loads to the foundation. Located between abutments, they play a crucial role in supporting the span structure. They ensure the stability and safety of the bridge, bearing the heavy pressure and playing a crucial role in reducing stress on the bridge.

[0003] Existing devices have some drawbacks during use. For example, the construction of highways inevitably crosses mountains and rivers. When the bridge piers and piles supporting the road surface are built in the river, the rivers flowing through the mountainous areas have characteristics such as rapid flow, high sand content, and mixed stones. The impact and abrasion of the river on the bridge piers and piles are very serious. Usually within two to three years, the concrete on the surface of the bridge piers and piles will be worn away, exposing the steel bars of the bridge piers and piles and causing them to rust, seriously endangering the safety of the bridge. Utility Model Content

[0004] The purpose of the utility model is to provide a local scour protection device for bridge piers, so as to solve the problem that rivers flowing through mountainous areas have the characteristics of rapid flow, high sand content, and mixed stones, and the rivers have serious impact and abrasion on the bridge pier pile foundations.

[0005] The utility model provides the following technical solution: a local scour protection device for bridge piers, comprising a base platform and a bridge pier, wherein the base platform is fixedly connected to the bridge pier at the center, a bottom layer protection component for protecting the base platform is arranged on the outside of the base platform, and a middle layer protection component for protecting the bottom of the pier is arranged on the outside of the bottom of the pier.

[0006] As a preferred embodiment of the above technical solution, the bottom protection component includes a rubber frame sleeved on the outer wall of the base, the inner wall of the rubber frame is fixed to the outer wall of the base, and the outer wall of the rubber frame is fixedly sleeved with a protective frame.

[0007] As a preferred embodiment of the above technical solution, the middle-layer protection component includes an annular frame symmetrically arranged above and below, a plurality of support rods are fixed in an annular array between the two annular frames, a plurality of reinforcing rods are arranged in a vertical array between the plurality of support rods, and a buffer component for buffering and unloading force is provided on both annular frames.

[0008] As a preferred embodiment of the above technical solution, the buffer assembly includes a ring array of through holes opened on the ring frame, and push rods are inserted into the through holes. An anti-slip block is fixedly installed on the end of the push rod away from the pier, and the end of the push rod close to the pier contacts the pier. A buffer spring is sleeved on the outside of the push rod, and the buffer spring is arranged between the ring frame and the pier. One end of the buffer spring is fixed to the inner wall of the ring frame.

[0009] As the preferred technical scheme, the outer side wall of the ejector rod is smaller than the inner side wall of the perforation, and the ejector rod slides in the perforation.

[0010] As the preferred technical scheme, the space formed by the combination of the annular frame, the support rod, the reinforcing rod and the pier is provided with a plurality of filling bags, and the inside of the filling bag is filled with gravel.

[0011] As the preferred technical scheme, the annular frame is formed by the combination of the first arc-shaped plate and the second arc-shaped plate, and the first arc-shaped plate and the second arc-shaped plate are fixed by bolts.

[0012] As the preferred technical scheme, the protective frame is made of plastic material.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] In the utility model, the bottom protection assembly is arranged on the outer side of the bottom platform, mainly plays the role of buffering the unloading force, when the water flow, floating objects and the like in the river impact the bottom platform, the bottom protection assembly can absorb part of the impact force, reduces the direct damage to the bottom platform, this helps to prolong the service life of the bottom platform, improves the overall safety of the bridge, the middle layer protection assembly is mainly used for protecting the bottom of the pier from the direct scouring of the water flow, the annular frame can uniformly disperse the impact force, the support rod and the reinforcing rod jointly form a firm support structure, prevent the deformation or damage of the protection assembly, simultaneously, the buffer assembly absorbs and disperses the remaining impact force, further protects the bottom of the pier from damage. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is an overall structure schematic view of a pier local scouring protection device;

[0016] Figure 2 It is an explosion structure schematic view of the bottom protection assembly;

[0017] Figure 3 It is an enlarged structure schematic view of the middle layer protection assembly;

[0018] Figure 4 It is Figure 3 The enlarged view of A in the middle.

[0019] In the drawing: 1, bottom platform; 11, pier; 2, bottom protection assembly; 21, rubber frame; 22, protective frame; 3, middle layer protection assembly; 31, annular frame; 311, first arc-shaped plate; 312, second arc-shaped plate; 32, support rod; 33, reinforcing rod; 4, buffer assembly; 41, perforation; 42, ejector rod; 43, anti-drop block; 44, buffer spring; 5, filling bag. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] Example

[0022] like Figure 1 and 2 As shown, the utility model provides a technical solution: a local scour protection device for bridge piers, comprising a base 1 and a pier 11, the base 1 being fixedly connected to the pier 11 at the center, a bottom layer protection component 2 for protecting the base 1 being provided on the outside of the base 1, and a middle layer protection component 3 for protecting the bottom of the pier 11 being provided on the outside of the bottom of the pier 11. During specific use, the base 1 is the basic supporting structure of the pier 11, which is usually buried in the riverbed or river bank and is used to disperse the pressure on the pier 11 and transfer it to the foundation. The pier 11 is the main load-bearing structure of the bridge, which is responsible for supporting the bridge deck load and transferring it to the base 1 and the foundation. The bottom layer protection component is mainly used to reduce the scouring force of the water flow, thereby protecting the base 1 structure from damage, and the middle layer protection component 3 is mainly used to protect the bottom of the pier 11 from direct scouring by the water flow.

[0023] As an implementation method in this embodiment, Figure 2 As shown, the bottom protection component 2 includes a rubber frame 21 sleeved on the outer wall of the base 1, the inner wall of the rubber frame 21 is fixed to the outer wall of the base 1, and the outer wall of the rubber frame 21 is fixedly sleeved with a protective frame 22, which is made of plastic material. During specific use, when water flow or floating objects impact the bridge pier 11, the bottom protection component 2 can first withstand the impact force, and the rubber frame 21 uses its elasticity to absorb part of the impact force, while the protective frame 22 further disperses and slows down the remaining impact force. This buffering and unloading mechanism helps to protect the base 1 from direct damage. The protective frame 22 made of plastic material has good corrosion resistance and can resist the erosion of chemicals and microorganisms in the water flow, which helps to extend the service life of the bottom protection component 2 and maintain its good protection effect.

[0024] As an implementation method in this embodiment, Figure 1 and Figure 3As shown, the middle-layer protection component 3 includes an annular frame 31 symmetrically arranged above and below, a plurality of support rods 32 are fixed in an annular array between the two annular frames 31, and a plurality of reinforcing rods 33 are arranged in a vertical array between the plurality of support rods 32. A buffer component 4 for buffering and unloading force is provided on both annular frames 31. During specific use, when water flow or floating objects impact the bottom of the pier 11, the middle-layer protection component 3 first bears the impact force, and the annular frame 31 can evenly disperse the impact force. The support rods 32 and the reinforcing rods 33 together form a solid support structure to prevent the protection component from deformation or damage. At the same time, the buffer component 4 absorbs and disperses the remaining impact force to further protect the bottom of the pier 11 from damage.

[0025] As an implementation method in this embodiment, Figure 4 As shown, the buffer assembly 4 includes a ring array of through holes 41 on the ring frame 31, and a push rod 42 is inserted into each of the through holes 41. An anti-slip block 43 is fixedly installed on the end of the push rod 42 away from the bridge pier 11, and the end of the push rod 42 close to the bridge pier 11 contacts the bridge pier 11. A buffer spring 44 is sleeved on the outside of the push rod 42. The buffer spring 44 is set between the ring frame 31 and the bridge pier 11. One end of the buffer spring 44 is fixed to the inner wall of the ring frame 31. The outer wall of the push rod 42 is smaller than the through hole 41. On the inner wall, the top rod 42 slides in the through-hole 41. During specific use, when water flow or floating objects impact the bridge pier 11, the impact force first acts on the top rod 42, and the top rod 42 transmits the impact force to the buffer spring 44. After the buffer spring 44 is compressed, it uses its elasticity to absorb and disperse the impact force, thereby reducing direct damage to the bridge pier 11. At the same time, the anti-detachment block 43 can prevent the top rod 42 from detaching from the through-hole 41 when subjected to impact force, thereby ensuring the stability and reliability of the buffer assembly 4.

[0026] As an implementation method in this embodiment, Figure 3 As shown, a plurality of filling bags 5 are provided in the space formed by the annular frame 31, the support rods 32, the reinforcing rods 33 and the bridge pier 11. The inner side of the filling bags 5 is filled with gravel. The gravel layer in the filling bags 5 further enhances the protective effect. The friction between the gravel particles can slow down the scouring speed of the water flow and absorb part of the impact force. In addition, the water permeability of the gravel allows water to pass through, reducing the direct scouring of the bottom of the bridge pier 11 by the water flow.

[0027] As an implementation method in this embodiment, Figure 3As shown, the annular frame 31 is composed of a first curved plate 311 and a second curved plate 312, which are fixed by bolts. The first curved plate 311 and the second curved plate 312 are connected together by bolts to form a complete annular frame 31. The shape and size of the annular frame 31 can be adjusted synchronously according to the shape and size of the pier 11. It should be noted that the support rods 32 and the reinforcing rods 33 are welded and fixed to the annular frame 31 after the annular frame 31 is sleeved on the outside of the pier 11.

[0028] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same.

Claims

1. A bridge pier local scour protection device, comprising a base (1) and a bridge pier (11), characterized in that: A bridge pier (11) is fixedly connected to the center of the base platform (1), a bottom layer protection component (2) for protecting the base platform (1) is provided on the outside of the base platform (1), and a middle layer protection component (3) for protecting the bottom of the bridge pier (11) is provided on the outside of the bottom of the bridge pier (11).

2. The bridge pier local scour protection device according to claim 1, characterized in that: The bottom protection component (2) comprises a rubber frame (21) sleeved on the outer wall of the base (1); the inner wall of the rubber frame (21) is fixed to the outer wall of the base (1); and the outer wall of the rubber frame (21) is fixedly sleeved with a protection frame (22).

3. The bridge pier local scour protection device according to claim 1, characterized in that: The middle layer protection component (3) comprises an annular frame (31) symmetrically arranged above and below, a plurality of support rods (32) are fixed in an annular array between the two annular frames (31), a plurality of reinforcing rods (33) are arranged in a vertical array between the plurality of support rods (32), and a buffer component (4) for buffering and unloading force is provided on both the annular frames (31).

4. The bridge pier local scour protection device according to claim 3, characterized in that: The buffer assembly (4) includes a ring array of through holes (41) provided on the ring frame (31), and push rods (42) are inserted into the through holes (41). An anti-slip block (43) is fixedly installed on one end of the push rod (42) away from the bridge pier (11), and an end of the push rod (42) close to the bridge pier (11) contacts the bridge pier (11). A buffer spring (44) is sleeved on the outside of the push rod (42), and the buffer spring (44) is provided between the ring frame (31) and the bridge pier (11). One end of the buffer spring (44) is fixed to the inner wall of the ring frame (31).

5. The bridge pier local scour protection device according to claim 4, characterized in that: The outer side wall of the push rod (42) is smaller than the inner side wall of the through hole (41), and the push rod (42) slides in the through hole (41).

6. The bridge pier local scour protection device according to claim 3, characterized in that: A plurality of filling bags (5) are provided in the space formed by the combination of the annular frame (31), the support rod (32), the reinforcing rod (33) and the bridge pier (11), and the inner sides of the filling bags (5) are filled with crushed stones.

7. The bridge pier local scour protection device according to claim 3, characterized in that: The annular frame (31) is composed of a first arc-shaped plate (311) and a second arc-shaped plate (312), and the first arc-shaped plate (311) and the second arc-shaped plate (312) are fixed by bolts.

8. The bridge pier local scour protection device according to claim 2, characterized in that: The protection frame (22) is made of plastic material.

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